I think as long as you filet a fish that has been taken care of, it’s hard to have a bad filet. Let them float around dead in your livewell in July and you get mushy fish.
I think they are mushy alive in late summer too. I put the plug in the live well, dump in a 20# bag of ice before I leave the dock, cut them after I catch them and let them bleed out on ice. They firm up when they float around in ice water all day.